If a Galaxy phone or tablet started misbehaving immediately after you changed a setting, first return to that exact control and undo it. If you cannot identify the change, use Samsung’s non-destructive Reset all settings command. It restores default device settings while keeping apps and personal data. Use a narrower network reset for connection problems, reset one app when only that app fails, test in Safe mode when a downloaded app may be responsible, and reserve Factory data reset for the final, destructive step.
Choose the least destructive remedy first
A setting reset is not a time machine. Samsung describes these commands as restoring defaults, not as recovering an exact snapshot of the configuration you had before the change. That distinction matters: you may need to choose preferences again afterward.
As an Amazon Associate I earn from qualifying purchases.
| Option | Use it when | What happens |
|---|---|---|
| Reverse the specific control | You remember which setting changed | Only that behavior is changed back; this is the most targeted approach. |
| Reset all settings | The cause is unclear, or reversing one control did not help | Samsung says default device settings are restored without erasing apps or personal data. |
| Reset one app | A single app is unresponsive or behaving incorrectly | Clearing cache removes temporary files; clearing data returns that app to its defaults and removes data saved in it. |
| Reset mobile network settings | Calls, mobile data, or cellular registration are failing | Only mobile-network configuration is reset; apps and personal files remain. |
| Reset Wi-Fi and Bluetooth settings | Wi-Fi or Bluetooth connections fail | Wireless connection settings are cleared; saved networks and paired accessories may need to be set up again. |
| Safe mode | You suspect a downloaded app rather than a device setting | Downloaded apps are temporarily disabled so you can compare the phone’s behavior with original software only. |
| Factory data reset | All other remedies failed and you accept erasing the device | Personal data is removed and the device returns to factory condition. Back up first. |
Menu wording and placement differ by Galaxy model and One UI version. The paths below match Samsung’s current US support guidance, but your screen can look different. If a path does not match, open Settings, tap the search icon, and search for Reset, Clear cache, or Safe mode. Read the confirmation screen before accepting any command.
Quick wins for a faster PC:
Clear out junk files and repair common Windows errorsFree Scan →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →1. Undo the exact setting you changed
When you know what you changed, do not start with a phone-wide reset. Open Settings and use its search field with a distinctive word from the control—for example, “notification,” “display,” “accessibility,” “battery,” “permission,” or “default app.” Tap the matching result, restore the previous value, and test the feature immediately.
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
Record the original value before experimenting
- If the old value is visible in a screenshot, note it before changing anything else.
- Change one control at a time, then test. Changing several options together makes the cause harder to identify.
- Restart the device after a change that affects system behavior, then test again.
- If the setting has an on/off switch, check both the switch and any sub-options beneath it; a parent switch can remain enabled while a child option causes the symptom.
When you cannot find the control
Settings search is more reliable than guessing through category names because Samsung reorganizes menus between models and software releases. Search for the feature that stopped working as well as for “reset.” If the result opens an app-specific page, change that app there rather than changing a global setting.
2. Use Reset all settings when the cause is unclear
Samsung’s broad, non-data-erasing fallback is Settings > General management > Reset > Reset all settings. On a model with different labels, search Settings for “Reset all settings.” This command restores the phone or tablet’s device settings to defaults.
What Samsung says this reset preserves
- Installed apps and personal data remain on the device.
- Accounts remain signed in according to Samsung’s description of the command.
- Security and language settings are not erased.
- Settings belonging to downloaded apps are not reset by this device-level command.
Because this is a defaults reset rather than a saved-state rollback, expect to review preferences such as sound, display behavior, connection choices, and other system options afterward. The confirmation page is the authority for your particular model; stop if it says that personal data or accounts will be removed.
Safe procedure
- Charge the device enough to complete a restart and close any work in progress.
- Open Settings.
- Tap General management, then Reset. If you do not see those labels, use Settings search for Reset.
- Select Reset all settings, not Factory data reset.
- Read every warning, authenticate if requested, and confirm only when the text says apps and personal data will remain.
- After the restart, reproduce the original symptom before changing additional settings. This tells you whether the reset solved it.
3. Match a network problem to the correct network reset
Do not reset every device setting when the failure is limited to one type of connection. Samsung separates cellular configuration from Wi-Fi and Bluetooth configuration.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
| Symptom | Command to search for | Afterward |
|---|---|---|
| No mobile service, calls fail, or mobile data will not connect | Reset mobile network settings | Test cellular service again. Your carrier-related network configuration is rebuilt from defaults. |
| Wi-Fi will not join or repeatedly disconnects | Reset Wi-Fi and Bluetooth settings | Reconnect to each required Wi-Fi network and enter its password again if prompted. |
| A Bluetooth accessory will not pair or stay connected | Reset Wi-Fi and Bluetooth settings | Pair headphones, cars, watches, and other accessories again. |
Mobile network reset
Open Settings and search for Reset mobile network settings. On many models it appears under General management > Reset. Confirm the command after checking the warning. This is the appropriate branch for a mobile-connection symptom, not for a Wi-Fi-only failure.
Wi-Fi and Bluetooth reset
Search Settings for Reset Wi-Fi and Bluetooth settings, or look under the Reset menu. Confirm, then set up the affected wireless connections again. Have Wi-Fi passwords and Bluetooth pairing devices available before starting, especially if the phone is used for work or two-factor authentication.
4. Repair one troublesome app instead of the whole phone
If the problem occurs in only one app, use that app’s storage controls. A device-wide reset will not repair corrupted app data as precisely as an app reset.
Windows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallOutdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchClear cache first
- Open Settings > Apps.
- Choose the affected app. Use the search field in the Apps list if necessary.
- Tap Storage.
- Tap Clear cache, then reopen the app and test it.
Cache files are temporary. Clearing them is the lower-risk first step for an app that is slow, frozen, or displaying stale content.
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Clear data only when you accept an app reset
From the same Storage screen, Clear data returns the app to its default settings. Samsung warns that this removes personal settings or data saved inside that app. You may be signed out, lose offline files or drafts stored only in the app, and need to configure it again. Back up or sync anything important within the app before tapping the command. Some system apps do not offer a Clear data button.
Clearing app data changes that app; it does not reset the Galaxy’s other settings. If several unrelated apps fail in the same way, return to the device-level troubleshooting branches instead.
5. Use Safe mode to test whether a downloaded app is involved
Safe mode is a diagnostic state, not a permanent repair. Samsung says it disables all downloaded apps and loads only the original software that came with the phone or tablet. If the symptom disappears in Safe mode, a downloaded app is the likely source; if it remains, the cause is less likely to be a downloaded app.
Do these 3 things before closing this tab:
1Repair Windows errors before they cause bigger problems2Scan for outdated or missing drivers - takes under a minute3Clear out junk files and repair common Windows errorsEnter and test Safe mode
Galaxy entry steps vary by model and software version. Use the Safe mode option shown by your device’s restart or power menu, or search Settings and Samsung’s on-device help for the exact method. On many Galaxy models, powering off, turning the device on, and holding Volume down while the Samsung logo appears starts Safe mode; the words “Safe mode” then appear on the screen. If your model behaves differently, do not repeatedly force-restart it—use the method displayed for that model.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
- Before entering Safe mode, note the exact symptom and the steps that reproduce it.
- Enter Safe mode and repeat those steps using only the original apps.
- Test long enough to distinguish an intermittent problem from a temporary one.
- If the issue is absent, restart normally and uninstall recently added or updated apps one at a time, testing after each removal.
Exit Safe mode
Power the device off and restart it normally. Downloaded apps should be available again. If the phone keeps returning to Safe mode, check whether the Volume down button is being held or pressed by a case during startup.
6. Keep Factory data reset as the last resort
Factory data reset is fundamentally different from Reset all settings. Samsung says it removes personal data and returns the device to factory settings. Use it only after targeted reversal, the appropriate settings reset, app troubleshooting, and Safe mode testing have failed—or when you are intentionally preparing the device for a clean start.
Back up before erasing anything
- Use Samsung Smart Switch or a cloud account to copy contacts, photos, messages, and other data you need.
- Samsung troubleshooting guidance also mentions backing up to an SD card or USB drive. A USB-C flash drive can be useful for local copies, but compatibility depends on your Galaxy model, port, and adapter; it is optional, not a requirement.
- Open important files from the backup destination or verify the cloud sync status. A backup that was never completed cannot be restored.
- Make sure you know the Google and Samsung account credentials associated with the device. A reset may require account credentials during setup.
- Export app-specific information that is not automatically synchronized, such as authenticator recovery codes, locally stored notes, or game saves.
Start the reset only after checking the warning
- Open Settings and search for Factory data reset. On many models the route is General management > Reset > Factory data reset.
- Review the list of accounts, apps, and personal content that will be removed.
- Confirm that the displayed command says Factory data reset, not Reset all settings.
- Authenticate when asked, tap the final confirmation, and leave the device connected to power until it finishes.
- During setup, restore only the backup you verified. Test the original problem before reinstalling every downloaded app; adding apps in stages makes a recurring software conflict easier to identify.
If the device cannot reach Settings, do not guess at recovery-button combinations from another Galaxy model. Button procedures and security screens vary. Use Samsung’s instructions for the exact model or obtain qualified service, particularly when the device is encrypted or repeatedly restarting.
Recommended Free Tools
What to do when the first remedy does not work
The reset option is missing
Search Settings for the full phrase, including “all settings,” “mobile network,” or “Wi-Fi and Bluetooth.” A carrier edition, tablet, or older One UI release may place the command under a different heading. Compare the confirmation wording rather than relying on the menu location alone.
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
The symptom continues after Reset all settings
Repeat the test without immediately changing other options. Then narrow the diagnosis: use the matching network reset for a connection-only problem, clear cache for one affected app, or run Safe mode if a downloaded app is plausible. A settings reset cannot repair a damaged display, battery, charging port, storage device, or other physical component.
The problem appears only after reinstalling an app
Record which app was installed immediately before the symptom returned. Uninstall it, restart normally, and test again. If the issue disappears, keep the app removed until its developer supplies a compatible update; avoid wiping the entire phone for a problem that one uninstall resolves.
You are unsure whether data will be erased
Stop at the confirmation screen and read the exact description. Reset all settings and the two network resets are intended to preserve apps and personal data, while Factory data reset is the erase command. Samsung notes that labels and layouts vary, so the on-screen warning on your device takes priority.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
A practical decision path
- Know the changed control? Reverse it and test.
- Cause unknown or one reversal failed? Choose Reset all settings after verifying its non-erasing confirmation.
- Only cellular service fails? Use Reset mobile network settings.
- Only Wi-Fi or Bluetooth fails? Use Reset Wi-Fi and Bluetooth settings, then reconnect devices.
- Only one app fails? Clear its cache; clear its data only after protecting the app’s saved information.
- Failure disappears in Safe mode? Remove downloaded apps methodically after restarting normally.
- Nothing above works? Back up and consider Factory data reset, accepting that personal data will be erased.
These steps move from the smallest possible change to the largest. They also leave a useful diagnostic trail: the first remedy that changes the symptom tells you whether the cause was a single preference, a connection profile, app data, a downloaded app, or the device software itself.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
